One of the principal factors in the farmer's relative indifference to health measures is the fact that he has become accustomed to think that an outdoor life and isolation from other people give him an ability to withstand sickness and he has rather gloried in his ability to throw off ordinary ailments and to withstand the physical hardship which his work often demands. He can see how health conditions may need attention in the city where people are crowded together, but he is not impressed that other causes make such diseases as typhoid and malaria much more prevalent in the open country, and that bad sanitation on a farm a mile away may cause sickness in his own family. American farmers have been educated on the nature and spread of disease by their experience with animal diseases, such as bovine tuberculosis, hog cholera, and Texas fever. If they can be interested to utilize this knowledge in the care of the health of their own families, and if they will provide health facilities for their own families equal to those which they feel necessary for their livestock, health conditions on the farm will show rapid improvement. It is not that the farmer is indifferent to the health of his family, but he has been _forced_ to have his herd tested for tuberculosis, and he faces the possibility of heavy losses if he does not have his hogs vaccinated for cholera, while he has not appreciated that by preventative agencies the better health of his wife and children may be insured and the cost of remedial treatment be greatly lessened.